From 487c4b2323b26cfb5fd4d77d3605a92c182b6288 Mon Sep 17 00:00:00 2001
From: Greentime Hu <greentime@andestech.com>
Date: Thu, 23 Aug 2018 14:47:43 +0800
Subject: [PATCH] nds32: Only print one page of stack when die to prevent
printing too much information.
It may print too much information sometimes if the stack is wrong or
too big. This patch can limit the debug information in a page of stack.
Signed-off-by: Greentime Hu <greentime@andestech.com>
---
arch/nds32/kernel/traps.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c
index b0b85b7ab0792..1496aab489988 100644
--- a/arch/nds32/kernel/traps.c
+++ b/arch/nds32/kernel/traps.c
@@ -173,11 +173,10 @@ void die(const char *str, struct pt_regs *regs, int err)
pr_emerg("CPU: %i\n", smp_processor_id());
show_regs(regs);
pr_emerg("Process %s (pid: %d, stack limit = 0x%p)\n",
- tsk->comm, tsk->pid, task_thread_info(tsk) + 1);
+ tsk->comm, tsk->pid, end_of_stack(tsk));
if (!user_mode(regs) || in_interrupt()) {
- dump_mem("Stack: ", regs->sp,
- THREAD_SIZE + (unsigned long)task_thread_info(tsk));
+ dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK);
dump_instr(regs);
dump_stack();
}
--
2.30.2